<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
    <script type="text/javascript">
    window.onload=function(){
        window.location.href="/submenu-redirect.html";
    };
</script>
</head>
<body>

<h2> this is menu</h2>

</body>
</html>